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United States Patent | 5,590,127 |
Bales ,   et al. | December 31, 1996 |
Providing multimedia conference calls with communication type conversion for changing types of communication terminals on one multimedia conference call. In addition, users of communication terminals can change communication types during the multimedia conference calls. Also, a set of users can use additional communication types not presently in use by a multimedia conference call to enhance communication among the set of users.
Inventors: | Bales; Bruce M. (Louisville, CO); Thieler; Stephen M. (Boulder, CO) |
Assignee: | Lucent Technologies Inc. (Murray Hill, NJ) |
Appl. No.: | 452484 |
Filed: | May 26, 1995 |
Current U.S. Class: | 370/260; 348/14.09; 370/264; 370/468; 379/202.01 |
Intern'l Class: | H04L 012/18; H04M 011/00; H04N 007/15 |
Field of Search: | 370/58.1,58.2,58.3,60,60.1,62,68.1,79,94.1,94.2,110.1,118 379/93,94,157,158,201,202,204,205,206,207,219,220,221 348/13,14,15,16,17 |
4796293 | Jan., 1989 | Blinken et al. | 379/202. |
5014266 | May., 1991 | Bales et al. | 370/62. |
5182751 | Jan., 1993 | Bales et al. | 370/110. |
5195086 | Mar., 1993 | Baumgartner et al. | 370/62. |
5369694 | Nov., 1994 | Bales et al. | 379/202. |
5371534 | Dec., 1994 | Dagdeviren et al. | 348/14. |
5373549 | Dec., 1994 | Bales et al. | 379/93. |
5384771 | Jan., 1995 | Isidoro et al. | 370/58. |
5386466 | Jan., 1995 | Bales et al. | 379/220. |
5408526 | Apr., 1995 | McFarland et al. | 379/202. |
5422883 | Jun., 1995 | Hauris et al. | 370/62. |
International Telecommunication Union (ITU-T, Telecommunication Standardization Sector of ITU, H.320, (Mar. 1993), Recommendation H.320, pp. 1-12. |